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A very useful is if it allows to roll of the camera on the fly, i.e. to rotate the camera from portrait to landscape, to take the benefit of wide angle on diagonal. For example one takes 4-6 around with Sigma 8mm on 1.6 crop with camera in portrait orientation then see than is need for camera to be rolled in landscape or at 60¬? to capture a wide 180¬? on diagonal for the reggion of the pano where is better to be no seam, say at the bich and in the cases of moving water, waves on the sea/ river, but also moving people in action journalistic VR sport events, mean the panographer can choose a reggion of the pano where 180¬? horisontally to be from a single shoot. Note, In PTGui or Hugin the shift for that shot must be the optimised appart from the other shots.

I do hope it will block focus, too.
Otherwise the Nikon/Sigma 8mm (don&#039;t know Canon version) rotates freely and you have to tape the focus-ring to keep the focus and camera fixed.
(not really nice to have a rotating camera on top of a 6m pole)
And: really don&#039;t need autofocus feature with 8mm fisheye.

Comment

Hehe Klaus,
NO I for myself need the focus once in a while.
When doing images in tight places Iset the focus to 0.3m F10-F11.
Also: when you look at the scale, you find out, that different F-stops reqiure differen focus setting.
I am not speaking of AF.

You know the T/MRings from Martin & Tobias: they are slim and just fit onto the lens without
blocking anything.

If you want: tape your lens, if not: use the focus ring. It¬¥s up to you.
I personally hate stuff that constricts me.

The ATX 107 is very sensitive just a couple of mm before the OO mark.
Since Tokina (and all other manufacturers) neglect the uasage of the scale in every mean, it IS important to
make up your own focus setting.Sometimes just AF an object in the right distance with the right AF-point and shoot your
pano MF then with that setting.

Comment

yes, it blocks the focus ring. You need to use manual focus. You tape the focus ring before mounting the lens ring.
In designing the lens ring, I put highest priority to safety of lens. Since the lens is NOT designed for clamping or to support the weight of the camera in any way, I have great reservation of lens ring products at the beginning.
Well, I hear customers say they want a compact light weight lens ring pano head. So I decide to release a lens ring that is safer (causes least stress on lens barrel) to use. My lens ring has the greatest area of contact between the lens and ring. It has a plastic insert between the metal ring and lens. Lens ring is installed closest to the camera body (center of mass). All this reduce stress on lens body.
From reports of many pro panographers, it is very safe to use the ring. R1 has been use to take pole panos at a few meter above ground without any problem.

Nick

Fanotec
We listen. We try harder.

Comment

The ATX 107 is very sensitive just a couple of mm before the OO mark.
Since Tokina (and all other manufacturers) neglect the uasage of the scale in every mean, it IS important to
make up your own focus setting.Sometimes just AF an object in the right distance with the right AF-point and shoot your
pano MF then with that setting.

The mounting/ clamping position is lens dependent, so some will be able to use the focus ring. Tokina 10-17mm focus ring is not blocked. Zoom ring will be fixed though.